(19)

(11)

EP 1 016 209 A1

(12)

(43) Date of publication: 05.07.2000 Bulletin 2000/27 (21) Application number: 98940409.0 (22) Date of filing: 27.08.1998

(51) International Patent Classification (IPC)7: H03C 1/00, H03C 5/00, H03D 1/00, H03D 5/00 (86) International application number: PCT/GB9802/583 (87) International publication number: WO 9910/976 (04.03.1999 Gazette 1999/09)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 27.08.1997 GB 9718131 (71) Applicant: Radioscape Limited London NW1 7RE (GB)	(72) Inventors: FERRIS, Gavin Robert,Radioscape Limited London NW1 7RE (GB) FLORENCE, Peter Charles,Radioscape Limited London NW1 7RE (GB) (74) Representative: Kidd, Piers Burgess et al Marks & Clerk,57-60 Lincoln's Inn Field London WC2A 3LS London WC2A 3LS (GB)